Frog of the Week

Northern Red-legged Frog (Rana aurora)

photo by Walter Siegmund

least concern
Common Name: Northern Red-legged Frog
Scientific Name: Rana aurora
Family: Ranidae
Locations: Canada and the United States
US Locations: Alaska, California, Oregon, and Washington
Size: 3.3 inches

The Northern Red-legged Frog is found along the western coast of North America. They breed from January to March depending on how far north they are located. Farther north they are, the later they breed. Egg masses from the frogs number between 300 and 5000 eggs. Eggs hatch in about a week into tadpoles. The tadpoles take 3 to 7 months to fully undergo metamorphosis. Some of the tadpoles take until the next spring to turn into frogs. Adult frogs can live up to 10 years.

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Frog of the Week

Cuban Tree Frog (Osteopilus septentrionalis)

osteopilus_septentrionalis_6
photo by Munkel

leastconcern
Common Name: Cuban Tree Frog
Scientific Name: Osteopilus septentrionalis
Family: Hylidae – Tree Frog Family
Locations: Bahamas, Cayman Islands, Cuba
Introduced Locations: Anguilla, Costa Rica, Guadeloupe, Puerto Rico, Turks and Caicos Islands, United States (Florida, Hawaii, Louisiana, Georgia, Alabama, Mississippi, and Texas), British Virgin Islands, and US Virgin Islands.
Size: 3 to 5.5 inches

The Cuban Tree Frog is a large tree frog native to the Caribbean but has been introduced to other areas of the world such as Florida. In Florida, the Cuban Tree Frog has become a problem. Their size allows them to eat other smaller frogs and other native animals.  They also can breed year round and it takes only a couple weeks for the tadpoles to reach frog stage. They also can produce skin secretions that can irritate humans.

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Frog of the Week

Common Toad (Bufo bufo)

1280px-Common_toad_(Bufo_bufo)_Kampinos
photo from https://www.sharpphotography.co.uk/

leastconcern
Common Name: Common Toad
Scientific Name: Bufo bufo
Family: Bufonidae
Location: Europe
Size: 6 inches

The Common Toad is found almost everywhere in Europe besides on some islands such as Iceland and Ireland. The Common Toad is kind of your standard toad. They are highly terrestrial besides during breeding season where they migrate to ponds to breed. Breeding usually takes place in spring when the toads wake up from hibernation.

Frog or Toad

Frog or Toad 5/1/18

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Can you tell if this is a frog or a toad? Try to make a guess below! If you need some tips read this. Also if you want to know what exactly are the differences between frogs and toads, read this! Answer will be posted tomorrow!

Frog of the Week

Túngara Frog (Engystomops pustulosus)

photo by Brian Gratwicke

leastconcern
Common Name: Túngara Frog
Scientific Name: Engystomops pustulosus
Family: Leptodactylidae
Location: Belize, Colombia, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Trinidad and Tobago,  and Venezuela
Size: 1.4 inches or 35 mm

The Túngara Frog is found throughout all of Central America down to South America. The frog is often studied because of their complex mate selection. Females don’t always select the “best” mate choice. You can read more in this article.

Túngara Frogs breed year round in whatever body of water they can find. Males call to the females while floating in these bodies of water. Once the female selects a mate, they move close to shore and make a lay their eggs in a foam nest that they make. These foam nests help protect the eggs from drying out.

 

Frog or Toad

Frog or Toad 4/24/18

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Can you tell if this is a frog or a toad? Try to make a guess below! If you need some tips read this. Also if you want to know what exactly are the differences between frogs and toads, read this! Answer will be posted tomorrow!

Frog of the Week

Smoky Jungle Frog (Leptodactylus pentadactylus)

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leastconcern

Common Name: Smoky Jungle Frog
Scientific Name: Leptodactylus pentadactylus
Family: Leptodactylidae
Location: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Peru, and Suriname
Size: 7.2 inches / 185 mm

The Smoky Jungle Frog is one of the largest frogs in the world, with females reaching over 7 inches long while males are slightly smaller. The frogs have a long life span that can reach over 15 years.

Mating takes place during the rainy months. Females form foam nests that the eggs are laid into to protect them from the environment. Not all eggs are fertilized, when the tadpoles emerge, they eat the unfertilized eggs.

The super power of the Smoky Jungle Frog is its anti predator defense system where its able to secrete vast amounts of mucus when attacked. Besides the mucus being gross,  it is also toxic so any predator won’t want to eat them.

Frog or Toad

Frog or Toad 4/17/18

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Can you tell if this is a frog or a toad? Try to make a guess below! If you need some tips read this. Also if you want to know what exactly are the differences between frogs and toads, read this! Answer will be posted tomorrow!

Frogs of the World

Blyth’s River Frog (Limnonectes blythii)

Limnonectes_blythii_from_Thailand
photo by Psumuseum

nearthreatened
Common Name: Blyth’s River Frog, Giant Asian River Frog, or Blyth’s Wart Frog
Scientific Name: Limnonectes blythii
Family: Dicroglossidae
Location: Indonesia, Laos, Malaysia, Myanmar, Singapore, Thailand, and Vietnam
Size: females can real 10.2 inches / 25.9 cm while males only reach 4.9 inches / 12.4 cm long

The Blyth’s River Frog is the largest frog in all of Asia. Their large size has its downsides, as people over harvested them for food as they can weigh more than 2 pounds.

The courtship behavior of Blyth’s River Frog is different. Instead of males calling for the females, the females call. The male also creates a hollow in the stream for the females to lay their eggs.